• The engine capacity for Pro Stock:
    Above 7.68 litres (470ci) will be Pro Stock Open (previously A)
    Below 7.68 litres (470ci) will be Pro Stock Tractors (previously B)
  • Weight class is: 4600kg, excluding driver.
  • The maximum length of 13 feet from centre of rear wheel to forward most portion of tractor including removable ballast.
  • Maximum width of vehicle is to be 8 feet at its widest point including ballast.
  • No four wheel drive model tractors are eligible as a Pro-Stock entry.
  • In order for a particular model of Tractor to be eligible as a Pro Stock entry there must have been 150 units produced
    of that model, it is up to the owner to provide documented proof should a protest be made.
next class: 2WD TRUCKS